“You ________ have a wrong number，”she said.“There's no one of that name here.”

 You’d better ____ football in the street.

— It’s hard to believe that Jack ________ have fought with the policeman.— Yes. If one ________ ask for trouble, it can’t be helped.

 —Look! A book is on the floor. Whose is it?—It ______be Rick's. It has his name on it.

You __________ tell anyone about this — it’s a secret.